TY  - RPRT
TI  - Bentonite deposits in marine Cretaceous formations, Hardin district, Montana and Wyoming
AU  - Maxwell M. Knechtel
AU  - Sam H. Patterson
PY  - 1956
DO  - 10.3133/b1023
UR  - https://pubs.usgs.gov/publication/b1023
ID  - b1023
ER  -